. >> congressman paul riot and vice-president joe biden will face often their only debate. moderating from danville, kentucky, you can watch and engage with the live debate preview followed by the debate at 9:00. with your reactions and calls and e-mail. >> we took a look at the debating styles at northeastern university journalism professor alan schroeder and the university of debate director warren decker. this hourlong program begins with an update from the white house correspondent. >> laura meckler, as we look at the first of three presidential debates, this one taking place on the campus of the university of denver, this has been the debate season of expectation by the obama and romney campaigns. what has happened? >> the expectations are being set on two different levels. you have the obama and romney campaigns talking about how great the other guy is. the people in the obama camp cannot stop praising mitt romney. they do not like him in any other way. they think he is a brilliant debater. same on romney's side. they talk about how obama is a debate champion. and how